I have the below query, but the AND pd.FROMLOC <> 'DMS' does not work if the column has {null} is there a workaround?
SELECT pd.wavekey, pd.orderkey, o.externorderkey, pd.pickdetailkey, pd.status, pd.fromloc, pd.loc, pd.sku, pd.qty, pd.adddate, SUBSTR(o.c_zip,1,3), O.SUSR4, od.cartonbreak
FROM sprtict.pickdetail pd
Join sprtict.ORDERS O on O.ORDERKEY = PD.ORDERKEY
Join sprtict.ORDERDETAIL OD on OD.ORDERKEY = O.ORDERKEY and od.ORDERLINENUMBER = pd.ORDERLINENUMBER
WHERE(PD.adddate BETWEEN (TRUNC(SYSDATE-1) + 21/24) AND (TRUNC(SYSDATE) + 21/24))
AND od.cartonbreak NOT IN ('FLOORPICK', 'LIFTPICK', 'STRINGERS')
AND pd.FROMLOC <> 'DMS'
AND pd.LOC <> 'DMS'
AND O.SUSR4 = '3P01'
AND pd.wavekey = '0001520762'
AND o.externorderkey = 'SP000044662873'

